Railway switch frog



April 28, 1 925. 1,535,264

J. P. STATHAS RAILWAY SWITCH FROG Filed July 15- 3.924

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Patented Apr. 193E.

STATES JOHN 1. Eu'TATHAS, 0F PENN, DAKOTA.

BAILVVAY SWITCH FROG.

Application filed July 15, 1924. Serial No. 726,158.

To all 107mm, it away concern:

Be it known that 1, JOHN P. STATHAS, a

' citizen of the United States, residing at Penn, in the county of Ramsey and State of North Dakota, have invented certain new and useful Improvements in Railway Switch Frogs; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to railway frogs and provides an article of this nature designed chiefly for switches and which insures safety and prevents derailment at the intersection or crossing of the rails, the frog including integral guard rails which insure a safe passage of the wheels at the intersection, said guard rails preferably forming an integral part of the frog although it is con templated to have the parts separately constructed and bolted or otherwise secured when assembled and said frog being provided with openings for the reception of a lubricant whereby to oil the wheels and thereby materially increase the life of the frog.

Uther objects and advantages will be apparent and suggest themselves as the nature of the invention is understood.

V hile the drawings illustrate an embodiment of the invention it is to be understood that in adapting the same to meet different conditions and requirements, various changes in the form, proportion and minor details of construction may be resorted to without departing from the nature of the invention.

Referring to the accompanying drawings forming a part of the specification,

lligure 1 a top plan view of a railway switch frog embodyin the invention,

l igurc 2 is a vertical longitudinal section on the line 2-2 of Figure 1,

Figure 3 is a transverse sectional view on the line 35 of Figure 1,

l igurc 4t a similar view on the line -1l-1 of Fi ure 1,

Figure 0 is a side view of a separately formed guard rail, and

Figure 6 is a top plan view thereof.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawing by like reference characters.

The frog embodies a body portion 10 and a point 11, intersecting channels 12 being formed in the top side of the body 10 to provide passageways for the flanges of the car wheels. The channels 12 extend along opposite sides of the point 11 and the lat ter is forked or depressed at its heel to receive the end of a block 13 which is secured in place by means of bolts 14. Guard hinges 15 are disposed adjacent the outer sides of the channels 12 and an intermediate filling is provided between the guard flanges or rails 15 and the body of the frog to receive and sustain the tread of the car wheels when passing over the frog. Extensions or wings 17 are provided for convenience of attachment of the main rails to the frog, openings 18 are formed in the point 11 and filling 16 to receive a lubricant or cotton waste saturated with oil whereby to lubricate the car wheels and thereby prevent excessive wear upon the frog and materially increase its period of service.

While in the preferable construction the component parts of the frog are of integral formation, nevertheless the guard flanges 15 and the filling 16 may be separately formed and bolted or otherwise secured to the body of the frog. The device is equally well adapted for steam railways as well as streetcar railways, the changes being minor as best suited to the particular use. The ends of the guard flanges or rails flare to facilitate the entrance of the flanges of the car wheels into the throat of the frog and the ends of the filling 16 are depressed to admit of the tread of the wheels gradually engaging and leaving the frog.

That is claimed is A railway frog structure having a body provided with a wheel-way, a guard flange extending above said way at one side there of, a filler at the base of said way, said filler being provided with relatively deep vertical channels arranged in the tread surface thereof adapted to contain lubricating means for engagement by the tread of car wheels, and to be spread over the surface of the tread of the wheels and of the frog for lubrication thereof.

In testimony whereof I aili); my signature in presence of two witnesses.

JOHN P. STATHAS. WVitnesses:

G. M. PETERSON, NICK. MUEHLEN. 

